Applies to: All looms equipped the Toika cog wheel warp tension adjustment.
In order to turn the warp beam with the handwheel at the rear of the loom, you must first disengage the worm gear from the worm cog wheel.
Background #
The worm gear is mounted on a metal plate secured to the loom frame with bolts and wing nuts.
We’ve removed the wing nut and washer in this picture so that you can see the bolt and slot in the metal plate.

These two L-shaped slots allow the plate to be dropped down disengaging the worm gear. Once the worm gear is clear of the cog wheel, the warp beam can turn freely.
Step 1: Locate and loosen the wing nuts #
The worm gear mounting plate sits beneath the warp beam inside the loom frame. Here you can see that the worm gear is engaged with the teeth of the cog wheel.

Loosen both wing nuts beneath the worm gear. Half a turn should be enough, don’t try to remove them.
Step 2: Drop the worm gear #
Slide the plate towards the front of the loom and it will drop a couple of centimetres.
The worm gear will disengage from the cog wheel.

The warp beam can now turn freely. Use the handwheel to turn it while you wind the warp on.
Once you are finished, slide the plate up and towards the back of the loom to re-engage the worm gear. Tighten both of the wing nuts.
To keep the gear turning smoothly, you can apply a little petroleum jelly (e.g. Vaseline®) or silicone grease to the worm gear. Don’t use oil.